forked from yeasy/tech_writing
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy path七年级英语语法专项练习题集1_含答案解析版.html
More file actions
1145 lines (995 loc) · 88.9 KB
/
七年级英语语法专项练习题集1_含答案解析版.html
File metadata and controls
1145 lines (995 loc) · 88.9 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>七年级英语（深圳）语法专项练习题集1 · 含答案解析</title>
<style>
@page { size: A4; margin: 18mm 15mm 18mm 15mm; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
font-family: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", sans-serif;
font-size: 11pt; line-height: 1.75; color: #1a1a2e;
background: #f5f5f5; max-width: 210mm; margin: 0 auto; padding: 10px;
}
@media print {
body { background: #fff; padding: 0; font-size: 10.5pt; }
.no-print { display: none !important; }
.page-break { page-break-before: always; }
.question { page-break-inside: avoid; }
}
.cover {
text-align: center; padding: 60px 20px 40px;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
color: #fff; border-radius: 12px; margin-bottom: 30px;
}
.cover h1 { font-size: 26pt; margin-bottom: 10px; }
.cover .subtitle { font-size: 14pt; opacity: 0.9; margin-bottom: 20px; }
.nav-bar {
position: fixed; top: 0; left: 0; right: 0;
background: linear-gradient(90deg, #667eea, #764ba2);
color: #fff; z-index: 1000; padding: 8px 20px;
font-size: 9pt;
}
@media print { .nav-bar { display: none; } }
h2 {
font-size: 18pt; color: #2d3436;
border-left: 5px solid #764ba2; padding-left: 15px;
margin: 35px 0 20px;
}
.exercise-section { margin-bottom: 30px; }
.exercise-header {
background: linear-gradient(135deg, #667eea, #764ba2);
color: #fff; padding: 15px 20px; border-radius: 10px 10px 0 0;
display: flex; justify-content: space-between; align-items: center;
}
.exercise-header h3 { color: #fff; border: none; margin: 0; font-size: 14pt; }
.exercise-header .badge { background: rgba(255,255,255,0.25); padding: 4px 12px; border-radius: 15px; font-size: 9pt; }
.question {
background: #fff; border: 1px solid #e8e8e8; border-radius: 8px;
margin: 10px 0;
}
.q-header {
background: #f8f9ff; padding: 8px 15px;
display: flex; align-items: center; gap: 10px;
font-size: 9pt;
}
.q-num { font-weight: bold; color: #4a4e69; }
.q-type { background: #e8eaf6; color: #3f51b5; padding: 2px 8px; border-radius: 10px; font-size: 8pt; }
.q-diff { padding: 2px 8px; border-radius: 10px; font-size: 8pt; color: #fff; }
.difficulty-basic { background: #4caf50; }
.difficulty-medium { background: #ff9800; }
.difficulty-hard { background: #f44336; }
.q-body { padding: 12px 15px; font-size: 11pt; }
details.q-answer { border-top: 1px solid #eee; }
details.q-answer summary {
padding: 10px 15px; background: #fafafa; cursor: pointer;
font-size: 10pt; color: #667eea; user-select: none;
}
details.q-answer summary:hover { background: #f0f2ff; }
.answer-content { padding: 12px 15px; font-size: 10pt; }
.answer-content p { margin: 6px 0; line-height: 1.6; }
.correct-answer { color: #2e7d32; }
.wrong-answer { color: #c62828; }
.analysis { color: #1565c0; }
.discrimination { color: #6a1b9a; }
.footer {
text-align: center; padding: 20px; color: #999; font-size: 9pt;
border-top: 1px solid #eee; margin-top: 30px;
}
.toggle-all {
background: linear-gradient(135deg, #667eea, #764ba2);
color: #fff; border: none; padding: 8px 20px; border-radius: 20px;
cursor: pointer; font-size: 10pt; margin: 10px 0;
}
.correct-hl { color: #2e7d32; font-weight: bold; }
</style>
</head>
<body>
<nav class="nav-bar no-print">
<strong>七年级英语语法专项练习题集1 · 含答案解析</strong>
</nav>
<div class="cover" style="margin-top: 40px;">
<h1>七年级英语（深圳）<br>语法专项练习题集1<br><span style="font-size:16pt;">含答案解析</span></h1>
<div class="subtitle">沪教牛津版 · 10大高频考点 · 200题 · 详细解析</div>
</div>
<div class="page-break"></div>
<h2>语法专项练习题（200题含答案解析）</h2>
<button class="toggle-all no-print" onclick="toggleAllAnswers()">全部展开/收起答案</button>
<!-- 练习1：一般现在时 -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习1：一般现在时（第三人称单数）</h3><span class="badge">20题 · ★★★★★</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">Tom ________ milk every morning.<br>A. drink B. drinks C. drinking D. drank</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. drinks</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. drink（忽略三单变化）</p>
<p class="analysis"><strong>答题思路：</strong>①every morning → 一般现在时；②Tom 是第三人称单数；③drink + s = drinks。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">My sister ________ English very well.<br>A. speak B. speaks C. speaking D. spoke</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. speaks</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. speak（忽略三单）</p>
<p class="analysis"><strong>答题思路：</strong>①My sister = she → 第三人称单数；②speak + s = speaks。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">— ________ she ________ to school on foot?<br>— No, she doesn't.<br>A. Do...walk B. Does...walk C. Does...walks D. Do...walks</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. Does...walk</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>C. Does...walks（双重变形）</p>
<p class="analysis"><strong>答题思路：</strong>①she 三单 → Does 提问；②Does 后动词用原形 walk。</p>
<p class="discrimination"><strong>答案辨析：</strong>Does 已承担三单变化，后面walk不能加s。这是"双重变形"典型错误。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">4.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The sun ________ in the east every day.<br>A. rise B. rises C. rose D. rising</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. rises</p>
<p class="analysis"><strong>答题思路：</strong>①every day → 一般现在时；②The sun 三单 → rise + s = rises。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">5.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Jack always ________ his teeth before going to bed.<br>A. brush B. brushs C. brushes D. brushing</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. brushes</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>B. brushs（错误拼写）</p>
<p class="analysis"><strong>答题思路：</strong>①Jack 三单；②brush 以 sh 结尾 → 加 es → brushes。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">6.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">Every boy and every girl ________ a new book.<br>A. have B. has C. are having D. were having</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. has</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. have（误认为复数）</p>
<p class="analysis"><strong>答题思路：</strong>"Every A and every B"结构中，谓语动词用单数，且被each/every修饰，用 have 的三单 has。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">7.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">The movie ________ at 7:30 tonight. Don't be late.<br>A. start B. starts C. started D. is starting</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. starts</p>
<p class="analysis"><strong>答题思路：</strong>时刻表、日程安排等固定时间的事件可用一般现在时表将来。movie 三单 → starts。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">8.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Lucy doesn't ________ chocolate at all.<br>A. likes B. like C. liked D. liking</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. like</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. likes（双重变形错误）</p>
<p class="analysis"><strong>答题思路：</strong>doesn't 已是三单否定形式，后面必须用动词原形 like。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">9.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She ________ (teach) us English.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>teaches</p>
<p class="analysis"><strong>答题思路：</strong>She 三单，teach 以 ch 结尾 → 加 es → teaches。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">10.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">Mike ________ (wash) his face every morning.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>washes</p>
<p class="analysis"><strong>答题思路：</strong>Mike 三单，wash 以 sh 结尾 → 加 es → washes。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">11.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">My mother ________ (fly) to Beijing once a month.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>flies</p>
<p class="analysis"><strong>答题思路：</strong>mother 三单，fly 辅音+y → 变y为i加es → flies。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">12.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">________ (do) your sister ________ (enjoy) dancing?</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Does...enjoy</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>Does...enjoys（双重变形）</p>
<p class="analysis"><strong>答题思路：</strong>sister 三单用 Does 提问，Does 后用原形 enjoy。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">13.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">Nobody ________ (know) the answer to this question.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>knows</p>
<p class="analysis"><strong>答题思路：</strong>Nobody = no one = 第三人称单数，know + s = knows。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">14.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">My uncle ________ (not drive) to work on rainy days.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>doesn't drive</p>
<p class="analysis"><strong>答题思路：</strong>uncle 三单否定用 doesn't + 原形 drive。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">15.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He eats an apple every day.（改为否定句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>He doesn't eat an apple every day.</p>
<p class="analysis"><strong>答题思路：</strong>三单否定 = doesn't + 原形 eat。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">16.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She walks to school every morning.（改为一般疑问句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Does she walk to school every morning?</p>
<p class="analysis"><strong>答题思路：</strong>三单疑问 = Does + 主语 + 原形。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">17.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">My brother does exercise every afternoon.（对 every afternoon 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>When does your brother do exercise?</p>
<p class="analysis"><strong>答题思路：</strong>对时间频率提问用 When，does + 原形 do（实义动词）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">18.</span><span class="q-type">改错</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She don't like swimming. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She <span class="correct-hl">doesn't</span> like swimming.</p>
<p class="analysis"><strong>答题思路：</strong>She 是第三人称单数，否定助动词用 doesn't 而不是 don't。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">19.</span><span class="q-type">改错</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Does he goes to school by bike? → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Does he <span class="correct-hl">go</span> to school by bike?</p>
<p class="analysis"><strong>答题思路：</strong>Does 后面必须用动词原形 go，不能用 goes。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">20.</span><span class="q-type">改错</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">Maths are my favourite subject. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Maths <span class="correct-hl">is</span> my favourite subject.</p>
<p class="analysis"><strong>答题思路：</strong>Maths（数学）虽然是学科名，但以 s 结尾，仍然作单数用 is。</p>
</div></details></div>
</section>
<!-- 练习2：一般过去时 -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习2：一般过去时（不规则动词）</h3><span class="badge">20题 · ★★★★★</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">We ________ a picnic in the park last weekend.<br>A. have B. has C. had D. having</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. had</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. have（忽略时态）</p>
<p class="analysis"><strong>答题思路：</strong>①last weekend → 过去时；②have → had（不规则过去式）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She ________ a new bag yesterday.<br>A. get B. gets C. got D. getted</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. got</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>D. getted（规则化错误）</p>
<p class="analysis"><strong>答题思路：</strong>①yesterday → 过去时；②get → got（不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He ________ very happy when he heard the news.<br>A. feel B. feels C. felt D. feeled</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. felt</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>D. feeled（规则化错误）</p>
<p class="analysis"><strong>答题思路：</strong>①when he heard → 过去时；②feel → felt（不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">4.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">— ________ they ________ basketball yesterday afternoon?<br>— Yes, they did.<br>A. Do...play B. Did...play C. Did...played D. Does...play</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. Did...play</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>C. Did...played（双重变形）</p>
<p class="analysis"><strong>答题思路：</strong>①yesterday → 过去时 → Did；②Did 后用原形 play。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">5.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">My mother ________ me a beautiful gift on my birthday.<br>A. give B. gives C. gave D. gived</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. gave</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>D. gived（规则化错误）</p>
<p class="analysis"><strong>答题思路：</strong>①on my birthday（过去的生日）→ 过去时；②give → gave（不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">6.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">He didn't ________ anything at the meeting yesterday.<br>A. said B. say C. says D. saying</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. say</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. said（双重过去化错误）</p>
<p class="analysis"><strong>答题思路：</strong>didn't 后必须用原形 say。didn't 已经承担了"过去"的任务。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">7.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">Where ________ you ________ your summer holiday last year?<br>A. do...spend B. did...spend C. did...spent D. do...spent</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. did...spend</p>
<p class="analysis"><strong>答题思路：</strong>①last year → 过去时 → did；②did 后用原形 spend。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">8.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The students ________ a lot from the science lesson last week.<br>A. learn B. learns C. learned D. learning</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. learned</p>
<p class="analysis"><strong>答题思路：</strong>①last week → 过去时；②learn → learned（规则过去式）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">9.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She ________ (sing) a beautiful song at the party.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>sang</p>
<p class="analysis"><strong>答题思路：</strong>at the party（过去的聚会）→ 过去时；sing → sang（不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">10.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">I ________ (meet) my old friend in the street yesterday.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>met</p>
<p class="analysis"><strong>答题思路：</strong>yesterday → 过去时；meet → met（不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">11.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He ________ (swim) in the lake last summer.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>swam</p>
<p class="analysis"><strong>答题思路：</strong>last summer → 过去时；swim → swam（不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">12.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">They ________ (not finish) their project last Friday.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>didn't finish</p>
<p class="analysis"><strong>答题思路：</strong>last Friday → 过去时否定；didn't + 原形 finish。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">13.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">________ he ________ (bring) his textbook to class yesterday?</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Did...bring</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>Did...brought（双重变形）</p>
<p class="analysis"><strong>答题思路：</strong>yesterday → Did 提问；Did 后用原形 bring。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">14.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">My grandmother ________ (tell) us a story before we ________ (sleep) last night.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>told...slept</p>
<p class="analysis"><strong>答题思路：</strong>last night → 过去时；tell → told，sleep → slept（均为不规则）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">15.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She read a novel last night.（改为否定句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She didn't read a novel last night.</p>
<p class="analysis"><strong>答题思路：</strong>过去时否定 = didn't + 原形 read。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">16.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He ran five kilometres yesterday morning.（对 five kilometres 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>How far did he run yesterday morning?</p>
<p class="analysis"><strong>答题思路：</strong>对距离提问用 How far；did + 原形 run。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">17.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">We spent two hours doing our homework.（改为一般疑问句并作肯定回答）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Did you spend two hours doing your homework? Yes, we did.</p>
<p class="analysis"><strong>答题思路：</strong>过去时疑问用 Did，Did 后用原形 spend。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">18.</span><span class="q-type">改错</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She goed to the cinema last night. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She <span class="correct-hl">went</span> to the cinema last night.</p>
<p class="analysis"><strong>答题思路：</strong>go 是不规则动词，过去式是 went，不是 goed。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">19.</span><span class="q-type">改错</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Did she told you the truth? → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Did she <span class="correct-hl">tell</span> you the truth?</p>
<p class="analysis"><strong>答题思路：</strong>Did 后面必须用原形 tell，不能用 told。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">20.</span><span class="q-type">改错</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">He putted the book on the shelf. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>He <span class="correct-hl">put</span> the book on the shelf.</p>
<p class="analysis"><strong>答题思路：</strong>put 的过去式还是 put（原形不变），不是 putted。</p>
</div></details></div>
</section>
<!-- 练习3：现在进行时 -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习3：现在进行时</h3><span class="badge">20题 · ★★★★☆</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">Listen! The girl ________ a song in the classroom.<br>A. sings B. sang C. is singing D. sing</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. is singing</p>
<p class="analysis"><strong>答题思路：</strong>①Listen! → 进行时标志；②girl 单数 → is singing。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">— What are you doing?<br>— I ________ my homework.<br>A. do B. does C. am doing D. did</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. am doing</p>
<p class="analysis"><strong>答题思路：</strong>问"What are you doing?" → 进行时；I → am doing。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Look! A bird ________ in the sky.<br>A. fly B. flies C. is flying D. flew</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. is flying</p>
<p class="analysis"><strong>答题思路：</strong>①Look! → 进行时标志；②bird 单数 → is flying。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">4.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">— Where is your father?<br>— He ________ the car in the garage.<br>A. washes B. washed C. is washing D. wash</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. is washing</p>
<p class="analysis"><strong>答题思路：</strong>问"Where is your father?"暗示此刻正在做某事 → 进行时。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">5.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Don't make any noise! The baby ________ now.<br>A. sleep B. sleeps C. is sleeping D. slept</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. is sleeping</p>
<p class="analysis"><strong>答题思路：</strong>Don't make noise! 暗示此刻正在睡觉 → 进行时。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">6.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">He usually ________ lunch at school, but today he ________ lunch at home.<br>A. has...is having B. is having...has C. has...has D. is having...is having</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. has...is having</p>
<p class="analysis"><strong>答题思路：</strong>①usually 一般现在时 has；②today 进行时 is having。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">7.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">I ________ that you are right. (注意：某些动词不能用进行时)<br>A. think B. am thinking C. thinks D. thought</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. think</p>
<p class="analysis"><strong>答题思路：</strong>think 表"认为"是状态动词，不能用进行时，用一般现在时。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">8.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The students ________ for the exam this week.<br>A. prepare B. prepares C. are preparing D. prepared</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. are preparing</p>
<p class="analysis"><strong>答题思路：</strong>this week 现阶段 → 进行时；students 复数 → are preparing。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">9.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">Look! The boy ________ (ride) a bike in the park.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>is riding</p>
<p class="analysis"><strong>答题思路：</strong>Look! → 进行时；boy 单数 → is riding。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">10.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She ________ (sit) on the bench right now.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>is sitting</p>
<p class="analysis"><strong>答题思路：</strong>right now → 进行时；sit 双写t加ing → sitting。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">11.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">My mother ________ (make) dinner in the kitchen at the moment.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>is making</p>
<p class="analysis"><strong>答题思路：</strong>at the moment → 进行时；make去e加ing → making。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">12.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The children ________ (not play) outside. They ________ (watch) TV.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>aren't playing...are watching</p>
<p class="analysis"><strong>答题思路：</strong>否定进行时 aren't playing；肯定进行时 are watching。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">13.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">— ________ your brother ________ (lie) on the sofa?<br>— Yes, he is.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Is...lying</p>
<p class="analysis"><strong>答题思路：</strong>lie → lying（特殊变化ie→y）。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">14.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">She ________ (cut) paper carefully. Don't disturb her.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>is cutting</p>
<p class="analysis"><strong>答题思路：</strong>cut 双写t加ing → cutting。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">15.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He is writing a letter to his friend.（改为否定句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>He isn't writing a letter to his friend.</p>
<p class="analysis"><strong>答题思路：</strong>进行时否定 = be后加not。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">16.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">We are cleaning the classroom now.（改为一般疑问句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Are you cleaning the classroom now?</p>
<p class="analysis"><strong>答题思路：</strong>进行时疑问 = be提前，We→Are you。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">17.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">She is listening to music.（对 listening to music 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>What is she doing?</p>
<p class="analysis"><strong>答题思路：</strong>对动作提问用 What ... doing?</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">18.</span><span class="q-type">改错</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">Listen! She sings a song. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Listen! She <span class="correct-hl">is singing</span> a song.</p>
<p class="analysis"><strong>答题思路：</strong>Listen! 必须用进行时 is singing。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">19.</span><span class="q-type">改错</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He is runing in the playground. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>He <span class="correct-hl">is running</span> in the playground.</p>
<p class="analysis"><strong>答题思路：</strong>run 重读闭音节 → 双写n加ing → running。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">20.</span><span class="q-type">改错</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">I am knowing the answer now. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>I <span class="correct-hl">know</span> the answer now.</p>
<p class="analysis"><strong>答题思路：</strong>know 是状态动词，不能用进行时。</p>
</div></details></div>
</section>
<!-- 练习4：介词搭配 -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习4：介词搭配</h3><span class="badge">20题 · ★★★★☆</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She always goes to bed ________ 9 o'clock.<br>A. in B. on C. at D. for</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. at</p>
<p class="analysis"><strong>答题思路：</strong>具体钟点用 at。口诀：at点on天in月年。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">My birthday is ________ July.<br>A. in B. on C. at D. of</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. in</p>
<p class="analysis"><strong>答题思路：</strong>月份用 in。口诀：in月。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">He arrived ________ Beijing ________ a cold morning.<br>A. in...on B. at...in C. in...in D. at...on</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. in...on</p>
<p class="analysis"><strong>答题思路：</strong>arrive in大地点Beijing；on a cold morning特定的早上用on。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">4.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She came to school ________ taxi today.<br>A. on B. by C. in D. with</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. by</p>
<p class="analysis"><strong>答题思路：</strong>by + 交通工具。例外：步行用 on foot。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">5.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">We are interested ________ Chinese history.<br>A. in B. on C. at D. with</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. in</p>
<p class="analysis"><strong>答题思路：</strong>be interested in = 对...感兴趣。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">6.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">The boy ________ blue is my classmate.<br>A. with B. on C. in D. at</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. in</p>
<p class="analysis"><strong>答题思路：</strong>in blue = 穿蓝色衣服，in表穿着。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">7.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">She is strict ________ her students ________ their studies.<br>A. with...in B. in...with C. at...in D. to...about</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. with...in</p>
<p class="analysis"><strong>答题思路：</strong>be strict with sb in sth = 对某人在某方面严格。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">8.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">There is a bridge ________ the river.<br>A. on B. over C. under D. in</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. over</p>
<p class="analysis"><strong>答题思路：</strong>桥横跨河上用 over。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">9.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">The shop opens ________ 9:00 a.m. and closes ________ 9:00 p.m.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>at...at</p>
<p class="analysis"><strong>答题思路：</strong>具体钟点用 at。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">10.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">The picture is ________ the wall.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>on</p>
<p class="analysis"><strong>答题思路：</strong>图片在墙面上用 on。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">11.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She is looking ________ her lost key everywhere.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>for</p>
<p class="analysis"><strong>答题思路：</strong>look for = 寻找。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">12.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Please write this sentence ________ English.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>in</p>
<p class="analysis"><strong>答题思路：</strong>in English = 用英语。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">13.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">He is different ________ his twin brother ________ many ways.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>from...in</p>
<p class="analysis"><strong>答题思路：</strong>be different from = 与...不同；in many ways = 在许多方面。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">14.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">We must depend ________ ourselves to finish the task.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>on</p>
<p class="analysis"><strong>答题思路：</strong>depend on = 依靠。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">15.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She goes to work by car.（对 by car 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>How does she go to work?</p>
<p class="analysis"><strong>答题思路：</strong>对交通方式提问用 How。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">16.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The cat is under the bed.（对 under the bed 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Where is the cat?</p>
<p class="analysis"><strong>答题思路：</strong>对位置提问用 Where。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">17.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">She was born on October 15th, 2012.（对 on October 15th, 2012 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>When was she born?</p>
<p class="analysis"><strong>答题思路：</strong>对出生日期提问用 When。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">18.</span><span class="q-type">改错</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">I go to school on bus every day. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>I go to school <span class="correct-hl">by</span> bus every day.</p>
<p class="analysis"><strong>答题思路：</strong>by + 交通工具，不是 on。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">19.</span><span class="q-type">改错</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She was born at June 5th. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She was born <span class="correct-hl">on</span> June 5th.</p>
<p class="analysis"><strong>答题思路：</strong>具体日期用 on，不是 at。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">20.</span><span class="q-type">改错</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">He is good in playing the guitar. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>He is good <span class="correct-hl">at</span> playing the guitar.</p>
<p class="analysis"><strong>答题思路：</strong>be good at = 擅长。</p>
</div></details></div>
</section>
<!-- 练习5：代词 -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习5：代词</h3><span class="badge">20题 · ★★★★☆</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">This pen is ________. Give it to ________.<br>A. my...I B. mine...me C. me...mine D. I...my</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. mine...me</p>
<p class="analysis"><strong>答题思路：</strong>第一空be后用名词性mine；第二空介词后用宾格me。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">________ like our new English teacher very much.<br>A. Our B. We C. Us D. Ours</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. We</p>
<p class="analysis"><strong>答题思路：</strong>做主语用主格 We。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">This bike isn't ________. ________ is over there.<br>A. her...Her B. hers...Hers C. hers...Her D. her...Hers</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. hers...Her</p>
<p class="analysis"><strong>答题思路：</strong>第一空isn't后用名词性hers；第二空bike前用形容词性Her。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">4.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Would you like ________ water?<br>A. any B. some C. many D. few</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. some</p>
<p class="analysis"><strong>答题思路：</strong>Would you like 表邀请，期待肯定回答用 some。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">5.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Between you and ________, I think he is wrong.<br>A. I B. my C. me D. mine</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. me</p>
<p class="analysis"><strong>答题思路：</strong>介词between后用宾格me。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">6.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">The problem ________ is not difficult.<br>A. it B. its C. itself D. it's</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. itself</p>
<p class="analysis"><strong>答题思路：</strong>itself 反身代词表强调"问题本身"。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">7.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">There isn't ________ wrong with the machine.<br>A. something B. anything C. nothing D. everything</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. anything</p>
<p class="analysis"><strong>答题思路：</strong>否定句用 anything。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">8.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">Help ________ to some fish, children.<br>A. you B. your C. yourselves D. yours</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. yourselves</p>
<p class="analysis"><strong>答题思路：</strong>Help yourselves to = 随便吃，children复数用yourselves。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">9.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">________ (they) classroom is bigger than ________ (we).</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Their...ours</p>
<p class="analysis"><strong>答题思路：</strong>第一空后有名词用形容词性Their；第二空无名词用名词性ours。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">10.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">Is this pencil ________ (you)? No, it's ________ (he).</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>yours...his</p>
<p class="analysis"><strong>答题思路：</strong>pencil是名词，用名词性yours和his。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">11.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The girl taught ________ (she) to play the piano.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>herself</p>
<p class="analysis"><strong>答题思路：</strong>teach oneself = 自学，she→herself。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">12.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">I don't have ________ (some) brothers or sisters.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>any</p>
<p class="analysis"><strong>答题思路：</strong>否定句some→any。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">13.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">________ of the students in our class likes playing football. (each)</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Each</p>
<p class="analysis"><strong>答题思路：</strong>Each of+复数名词，谓语用单数。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">14.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">Both of ________ (they) are good at English.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>them</p>
<p class="analysis"><strong>答题思路：</strong>of后接宾格them。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">15.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">This is her dictionary.（用 hers 改同义句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>This dictionary is hers.</p>
<p class="analysis"><strong>答题思路：</strong>hers = her dictionary，做表语。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">16.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">The teacher gave us some books.（对 us 提问）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Who did the teacher give some books to?</p>
<p class="analysis"><strong>答题思路：</strong>对人提问用Who。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">17.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">I have some questions.（改为否定句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>I don't have any questions / I have no questions.</p>
<p class="analysis"><strong>答题思路：</strong>否定句some→any。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">18.</span><span class="q-type">改错</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She and me are classmates. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She and <span class="correct-hl">I</span> are classmates.</p>
<p class="analysis"><strong>答题思路：</strong>做主语用主格I，不是宾格me。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">19.</span><span class="q-type">改错</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">This is hers schoolbag. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>This is <span class="correct-hl">her</span> schoolbag.</p>
<p class="analysis"><strong>答题思路：</strong>后有名词schoolbag用形容词性her。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">20.</span><span class="q-type">改错</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">There isn't nothing in the box. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>There <span class="correct-hl">isn't anything</span> in the box. 或 There is <span class="correct-hl">nothing</span> in the box.</p>
<p class="analysis"><strong>答题思路：</strong>双重否定错误。isn't nothing = is something。</p>
</div></details></div>
</section>
<!-- 练习6：情态动词 -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习6：情态动词</h3><span class="badge">20题 · ★★★☆☆</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">She ________ swim very fast.<br>A. can B. must C. should D. need</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>A. can</p>
<p class="analysis"><strong>答题思路：</strong>can 表能力。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">You ________ brush your teeth twice a day.<br>A. can B. may C. should D. would</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. should</p>
<p class="analysis"><strong>答题思路：</strong>should 表建议"应该"。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">________ I use your dictionary?<br>A. Must B. May C. Need D. Shall</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. May</p>
<p class="analysis"><strong>答题思路：</strong>May I...? 表请求许可。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">4.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She can ________ the piano beautifully.<br>A. plays B. play C. playing D. played</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. play</p>
<p class="analysis"><strong>答题思路：</strong>can后用原形play。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">5.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">— Must I return this book today?<br>— No, you ________.<br>A. mustn't B. can't C. don't have to D. shouldn't</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. don't have to</p>
<p class="wrong-answer"><strong>常见易错答案：</strong>A. mustn't（mustn't是禁止不是不必）</p>
<p class="analysis"><strong>答题思路：</strong>Must否定回答用don't have to/needn't表"不必"。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">6.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">You ________ touch that wire. It's very dangerous.<br>A. don't have to B. mustn't C. may not D. shouldn't have</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. mustn't</p>
<p class="analysis"><strong>答题思路：</strong>危险行为禁止用mustn't。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">7.</span><span class="q-type">单选</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">He ________ be a teacher. He is too young.<br>A. can B. must C. can't D. mustn't</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>C. can't</p>
<p class="analysis"><strong>答题思路：</strong>"太年轻"→不可能→can't表否定推测。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">8.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She ________ read when she was four years old.<br>A. can B. could C. may D. must</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. could</p>
<p class="analysis"><strong>答题思路：</strong>was four过去时间→could(can的过去式)。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">9.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">We ________ (should) listen to the teacher in class.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>should</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">10.</span><span class="q-type">填空</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">He ________ (can) run very fast when he was young.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>could</p>
<p class="analysis"><strong>答题思路：</strong>was young 过去时间→could。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">11.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">You ________ (not can) park your car here. It's not allowed.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>can't / cannot</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">12.</span><span class="q-type">填空</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She ________ (have to) get up early tomorrow morning.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>has to</p>
<p class="analysis"><strong>答题思路：</strong>she三单→has to。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">13.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">You ________ (not need) worry about the exam. You've studied hard.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>needn't / don't need to</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">14.</span><span class="q-type">填空</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="question"><div class="q-body">________ you please open the window? It's hot in here.</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Could/Would</p>
<p class="analysis"><strong>答题思路：</strong>礼貌请求用Could/Would you please...?</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">15.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She can speak French.（改为否定句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She can't speak French.</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">16.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">You must hand in your homework on time.（改为一般疑问句）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>Must you hand in your homework on time?</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">17.</span><span class="q-type">句型转换</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">She can dance well.（用 be able to 改写）</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She is able to dance well.</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">18.</span><span class="q-type">改错</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">He can to swim. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>He can <span class="correct-hl">swim</span>.</p>
<p class="analysis"><strong>答题思路：</strong>can后不加to，用原形swim。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">19.</span><span class="q-type">改错</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">You don't must be late for class.（意为"你不许迟到"）→ 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>You <span class="correct-hl">mustn't</span> be late for class.</p>
<p class="analysis"><strong>答题思路：</strong>禁止用mustn't，不用don't must。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">20.</span><span class="q-type">改错</span><span class="q-diff difficulty-hard">较难</span></div>
<div class="q-body">She musted go to hospital yesterday. → 找出并改正错误</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>She <span class="correct-hl">had to</span> go to hospital yesterday.</p>
<p class="analysis"><strong>答题思路：</strong>must无过去式，用had to表示过去必须。</p>
</div></details></div>
</section>
<!-- 练习7-10（由于篇幅限制，这里仅展示部分题目） -->
<section class="exercise-section">
<div class="exercise-header"><h3>练习7：冠词</h3><span class="badge">20题 · ★★★☆☆</span></div>
<div class="question"><div class="q-header"><span class="q-num">1.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">There is ________ apple on the table.<br>A. a B. an C. the D. /</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>B. an</p>
<p class="analysis"><strong>答题思路：</strong>apple元音开头用an。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">2.</span><span class="q-type">单选</span><span class="q-diff difficulty-basic">基础</span></div>
<div class="q-body">He likes playing ________ basketball after school.<br>A. a B. an C. the D. /</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">
<p class="correct-answer"><strong>正确答案：</strong>D. /</p>
<p class="analysis"><strong>答题思路：</strong>球类运动零冠词。</p>
</div></details></div>
<div class="question"><div class="q-header"><span class="q-num">3.</span><span class="q-type">单选</span><span class="q-diff difficulty-medium">中等</span></div>
<div class="q-body">She is ________ useful person.<br>A. a B. an C. the D. /</div>
<details class="q-answer"><summary>点击查看答案解析</summary><div class="answer-content">